Solutions by everydaycalculation.com
945 - 845 is 145.
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Related: 18/45-8/45 9/45-16/45 9/90-8/45 9/45-8/90 27/45-8/45 9/45-24/45 9/45-40/45 63/45-8/45 9/45-56/45
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